Communicating with the module – Rockwell Automation 1734-IM2_IM4 POINT I/O 220V AC Input Module User Manual
Page 18
18 POINT I/O 220V ac Input Module
Publication
1734-IN008C-EN-E - January 2007
Communicating with the Module
I/O messages are sent to (consumed) and received from (produced)
the POINT I/O modules. These messages are mapped into the
processor’s memory. This POINT I/O input module produces 1 byte
of input data (scanner Tx) (state). It does not consume data
(scanner Rx).
Refer to the table that shows the default data map.
Default Data Map for 1734-IM2 Modules
7
6
5
4
3
2
1
0
Produces (Rx)
Ch1 Ch0
Consumes (Tx)
No consumed data
Where: Ch0 = channel 0, CH1 = channel 1, 0 = Off, 1 = On
Default Data Map for 1734-IM4 Modules
7
6
5
4
3
2
1
0
Produces (Rx)
Ch3 Ch2 Ch1 Ch0
Consumes (Tx)
No consumed data
Where: Ch0 = channel 0, Ch1 = channel 1, Ch2 - channel 2, Ch3 = channel 3
0 = Off, 1 = On